using the bohr model, find the correct isotope notation for silicon. a 24 18 si b 28 14 si c 14 14 si

Answer:

B. $_{14}^{28}\text{Si}$

Explanation:

Step1: Recall isotope - notation components

Isotope notation is $_{Z}^{A}\text{X}$, where $Z$ is the atomic number and $A$ is the mass number, and $\text{X}$ is the chemical symbol.

Step2: Determine the atomic number of silicon

The number of protons ($p^{+}$) is the atomic number. Given 14 protons, $Z = 14$ for silicon.

Step3: Calculate the mass number

The mass number $A$ is the sum of protons and neutrons. Here, $p^{+}=14$ and $n^{0}=14$, so $A=14 + 14=28$.

Step4: Write the isotope notation

For silicon with $Z = 14$ and $A = 28$, the isotope notation is $_{14}^{28}\text{Si}$.